Results 61 to 70 of about 10,582 (198)

High quality speech codec employing sines + noise + transients model

open access: yesArchives of Acoustics, 2014
A method of high quality wideband speech signal representation employing sines+transients+ noise model is presented. The need for a wideband speech coding approach as well as various methods for analysis and synthesis of sines, residual and transient ...
Maciej Kulesza   +3 more
doaj  

Prediction of Psychoacoustic Metrics Using Combination of Wavelet Packet Transform and an Optimized Artificial Neural Network

open access: yesArchives of Acoustics, 2019
In this paper, a modified sound quality evaluation (SQE) model is developed based on combination of an optimized artificial neural network (ANN) and the wavelet packet transform (WPT).
Mehdi POURSEIEDREZAEI   +2 more
doaj   +1 more source

A psychoacoustic "NofM"-type speech coding strategy for cochlear implants [PDF]

open access: yes, 2005
We describe a new signal processing technique for cochlear implants using a psychoacoustic-masking model. The technique is based on the principle of a so-called "NofM" strategy.
Buchner, Andreas   +3 more
core   +4 more sources

Multi-objective calibration of vertical-axis wind turbine controllers: balancing aero-servo-elastic performance and noise [PDF]

open access: yesWind Energy Science
Vertical-axis wind turbines (VAWTs) are considered promising solutions for urban wind energy generation due to their design, low maintenance costs, and reduced noise and visual impact compared to horizontal-axis wind turbines (HAWTs).
L. Brandetti   +5 more
doaj   +1 more source

Heat pump noise: Determination and modelling of preference-equivalent levels

open access: yesActa Acustica
Air-to-water heat pumps are increasingly replacing traditional heating systems because of their environmental and energy benefits. However, noise emitted by their fans and compressors can cause complaints, even when regulatory limits are met.
Stürenburg Lara   +3 more
doaj   +1 more source

ERP evidence for the recognition of emotional prosody through simulated cochlear implant strategies

open access: yesBMC Neuroscience, 2012
Background Emotionally salient information in spoken language can be provided by variations in speech melody (prosody) or by emotional semantics. Emotional prosody is essential to convey feelings through speech.
Agrawal Deepashri   +6 more
doaj   +1 more source

Auralization of a Supersonic Business Jet Using Advanced Takeoff Procedures [PDF]

open access: yes
Recent NASA studies of a supersonic business jet airplane indicated that advanced takeoff procedures could be used to reduce noise at the lateral sideline location to a level at which Chapter 4 noise certification requirements could be met.
Berton, Jeffrey J.   +2 more
core   +1 more source

Psychoacoustic Test to Determine Sound Quality Metric Indicators of Rotorcraft Noise Annoyance [PDF]

open access: yes
Noise certification metrics such as Effective Perceived Noise Level and Sound Exposure Level are used to ensure that helicopters meet regulations, but these metrics may not be good indicators of annoyance since noise complaints against helicopters ...
Christian, Andrew   +2 more
core   +1 more source

Investigating computational models of perceptual attack time [PDF]

open access: yes, 2006
The perceptual attack time (PAT) is the compensation for differing attack components of sounds, in the case of seeking a perceptually isochronous presentation of sounds. It has applications in scheduling and is related to, but not necessarily the same as,
Collins, Nick
core   +2 more sources

Automatic estimation of harmonic tension by distributed representation of chords

open access: yes, 2017
The buildup and release of a sense of tension is one of the most essential aspects of the process of listening to music. A veridical computational model of perceived musical tension would be an important ingredient for many music informatics applications.
B Tillmann   +20 more
core   +1 more source

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